Valve



Patented June 27, 1933 ran STA VALVE Application med. February 23, 1932.Serial No. 594,665.

This invention relates to valves and particularly to gas valves such asare ued to handle relatively large volumes of gases. One type of valvecustomarily used consists simply of a metal plate which is shovedbetween two sections of the pipe conducting the gases and bolted inplace. Generally this plate is made goggle-shaped with an open and blindeye, the blind eye being boltedin piace as just mentioned and the openeye ing substituted when the valve 1s open. These valves are subject tothe disadvantage that they are easily rendered inoperative by therusting and lockin together of theV various bolts, journals an slidingsurfaces and require extra supports in the gas mains.

The valve embodied b y the present inven.

tion is intended to obviate the above mentioned objectionable features.Further, .it is to be capable of being operated much more quickly, whichisa great advantage, for instance, when handling blast furnace gases.Other attainments of the invention will be understood from the followingdisclosure.

Having reference vto the accom anying drawings, which illustrate twospeci c forms of the invention:

Figure 1 is a vertical cross-section of a straightway form.

Figure 2 is a cross-'section from the line lll--ll in the first figure.

Figure 3 is a verticalcross-section of an angle form.

The straightway valve will be described first.

A casing'l has a fixed gas conducting section 2 and a second similarlyshaped section 3 which opposes the first and is mounted on a dat annularring 4 of flexible material. A plate 5 is mounted on a pivot 6 forswinging movement between the two sections. Both surfaces of this plateadjacent its inner circumference and the edges of the two sections areground smoothly.

A spider ring 7 is fixed to the ring 4 adjacent the section 3. Thecasing 1 extends upwardly to accommodate the long end of a one-arm lever8 which is fulcrumed in a socket 9 and fits through a hole in the spider53 7 The upper end of this lever is fixed to a shaft 1() which projectsout ing 1 with which it is in relationship. The various 'rss PATENT.oi-Fica hrough the casscrew-threaded parts through which this leverprojects have rounded surfaces which insure free operation. The 55 shaft10 is operated by a hand wheel l1 in the present instance, although inlarge 4valves it may be found advantageous to use some sort of powerdrive.

The operation of the valve is fairly ob- 0 vious.

Rotation of the shaft 10 lin one direction will move the section 3 awayfrom the section 2 permitting movement of the plate When this plate istion it will be hugge in closed posion either side by the 5 two sectionsin a gas-tight manner. When the plate is withdrawn so that the valve isopen the two sections arel shoved together so that their ground edgescoact whereby a gastight conduit is formed. As

the plate 5 will 7 be relatively unsupported when the valve is open'itis referab y eral reen orcement 12.

provided with a periph- The angle valve differs from the just describedstraightway valve in operating mechanism only.

its spider ring Here the mechanism consists simply of a rod 13 which isfixed to the spider4 7 and projects back towards the end of the casing1, the latter being modified only` to the extent that the gases 9 arestraight and of the Casin accommodation of the lever eliminated.

rThis rod 13 is operated through a compound screw directedright-angularly instead of the upwardly `projecting partk shown in thefirst instance for 8 is, of course,

by a shaft 14 15. The shaft 14 is manually koperated by a hand wheel 16although, as previously mentioned, a power drive motor may prove moresuitable in some instances. The compound screw 15 is protected from scumor other gas contamination a diaphragm 17 interposed between it and therod 13. The operation of this angle .y valve is substantially similar tothat described in connection with the straightway the patent statutes,it not 1i this valve have accordance with itended to limit wo the scopeoff the invention exactly thereto, ex. ce t defined by the follow cla.

c aim:

l. A valve including a casey a ixed as conducting section in said Casin,a movale gas conducting section positione in said casing to oppose saidfixed section, a plate arranged or swinging movement between saidsections, a spider arranged in said casing and connected with saidmovable section, and means for moving said spider to operate saidmovable section.

2., A valve including a casing, a ed gas conducting section in saidcasing, a movable conducting section positioned in said casing to opposesaid fixed section, a plate arranged for swinging movement between saidsections, a spider arranged in said casing and connected witli saidmovable section, a lever arranged in said casin and connected with saidspider and a sha t xed to said lever and projecting through said casing,said shaft and casing being arranged in mutualscrew-threaded engagement.

3. A valve including a casing, a fixed gas conducting section in saidcasing, a movable gas conducting section positioned in said caslng tooppose said fixed section, a plate arranged orswinging movement betweensaid sentons, a spider arranged in said casing and connected with saidmovable section, a rod fixed to said spider, a shaft projecting throughsaid casing and a compound screw connection between said shaft and rod.

l. A valve including a casing, a aed gas Leraren conducting section insaid casing, a movable gas conducting section in said casing, a flatring of exible material carrying said movable section so as to opposesaid fixed section,

a plate arranged to swing between said sec-' ring of flexible materialcarrying said mov-4 able section so as to oppose said xed section, aplate arraned to swing between said sections, a spider t ed to said ringadjacem said movable section. a lever arranged in said casing to movesaid spider, and an outwardly projecting shaft arranged inscrew-threaded engagement with said .casing and fixed to said lever.

6. A valve including a casing, a fixed as conducting section in saidcasing, a Inova le gas conductingsection in said casing, a flat ring ofdexible material carrying said movable section so as to oppose saidfixed section, a plate arranged to swing between said sections, a spiderfixed to said ning adjacent said movable section, a rod fixed to saidspider, a shaft projectingv through said casing and a com ound screwconnection between said sha and rod.

ln testimony whereof, l have hereunto set my hand.

FRANK R. MGGEE.

